APA (7 वां संस्करण) प्रशस्ति पत्र

Schaaf, F. (1991). Seeing the solar system: Telescopic projects, activities, and explorations in astronomy. Wiley.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Schaaf, Fred. Seeing the Solar System: Telescopic Projects, Activities, and Explorations in Astronomy. New York: Wiley, 1991.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Schaaf, Fred. Seeing the Solar System: Telescopic Projects, Activities, and Explorations in Astronomy. Wiley, 1991.